2 // Simple Bitcoin Payment Protocol messages
4 // Use fields 100+ for extensions;
5 // to avoid conflicts, register extensions at:
6 // https://en.bitcoin.it/wiki/Payment_Request
12 option java_package = "org.bitcoin.protocols.payments";
13 option java_outer_classname = "Protos";
15 // Generalized form of "send payment to this/these bitcoin addresses"
17 optional uint64 amount = 1 [default = 0]; // amount is integer-number-of-satoshis
18 required bytes script = 2; // usually one of the standard Script forms
20 message PaymentDetails {
21 optional string network = 1 [default = "main"]; // "main" or "test"
22 repeated Output outputs = 2; // Where payment should be sent
23 required uint64 time = 3; // Timestamp; when payment request created
24 optional uint64 expires = 4; // Timestamp; when this request should be considered invalid
25 optional string memo = 5; // Human-readable description of request for the customer
26 optional string payment_url = 6; // URL to send Payment and get PaymentACK
27 optional bytes merchant_data = 7; // Arbitrary data to include in the Payment message
29 message PaymentRequest {
30 optional uint32 payment_details_version = 1 [default = 1];
31 optional string pki_type = 2 [default = "none"]; // none / x509+sha256 / x509+sha1
32 optional bytes pki_data = 3; // depends on pki_type
33 required bytes serialized_payment_details = 4; // PaymentDetails
34 optional bytes signature = 5; // pki-dependent signature
36 message X509Certificates {
37 repeated bytes certificate = 1; // DER-encoded X.509 certificate chain
40 optional bytes merchant_data = 1; // From PaymentDetails.merchant_data
41 repeated bytes transactions = 2; // Signed transactions that satisfy PaymentDetails.outputs
42 repeated Output refund_to = 3; // Where to send refunds, if a refund is necessary
43 optional string memo = 4; // Human-readable message for the merchant
46 required Payment payment = 1; // Payment message that triggered this ACK
47 optional string memo = 2; // human-readable message for customer